Fig. 10From: Apoptotic extracellular vesicles derived from hypoxia-preconditioned mesenchymal stem cells within a modified gelatine hydrogel promote osteochondral regeneration by enhancing stem cell activity and regulating immunityExperimental grouping, macroscopic assessment and micro-CT analysis of knee samples. A Experimental grouping in vivo. B Representative macroscopic images of the repaired tissues at 6 and 12 weeks. C 2D and 3D micro-CT images of the repaired cartilage. D, E ICRS visual histological evaluations of repaired cartilage for macroscopic assessment at 6 weeks and 12 weeks. F Heatmap of variables for ICRS scoring. Statistical analysis: *p < 0.05, **p < 0.01, ***p < 0.001Back to article page